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configure.in@ 3283

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Last change on this file since 3283 was 3228, checked in by bird, 19 years ago
bash 3.1
File size: 33.1 KB

Line
1	dnl
2	dnl Configure script for bash-3.1
3	dnl
4	dnl report bugs to [email protected]
5	dnl
6	dnl Process this file with autoconf to produce a configure script.
7
8	# Copyright (C) 1987-2005 Free Software Foundation, Inc.
9
10	# This program is free software; you can redistribute it and/or modify
11	# it under the terms of the GNU General Public License as published by
12	# the Free Software Foundation; either version 2, or (at your option)
13	# any later version.
14
15	# This program is distributed in the hope that it will be useful,
16	# but WITHOUT ANY WARRANTY; without even the implied warranty of
17	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	# GNU General Public License for more details.
19
20	# You should have received a copy of the GNU General Public License
21	# along with this program; if not, write to the Free Software
22	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23	# 02111-1307, USA.
24
25	AC_REVISION([for Bash 3.1, version 3.183])dnl
26
27	define(bashvers, 3.1)
28	define(relstatus, release)
29
30	AC_INIT(bash, bashvers-relstatus, [email protected])
31
32	dnl make sure we are using a recent autoconf version
33	AC_PREREQ(2.50)
34
35	AC_CONFIG_SRCDIR(shell.h)
36	dnl where to find install.sh, config.sub, and config.guess
37	AC_CONFIG_AUX_DIR(./support)
38	AC_CONFIG_HEADERS(config.h)
39
40	dnl checks for version info
41	BASHVERS=bashvers
42	RELSTATUS=relstatus
43
44	dnl defaults for debug settings
45	case "$RELSTATUS" in
46	alp\|bet\|dev\|rc) DEBUG='-DDEBUG' MALLOC_DEBUG='-DMALLOC_DEBUG' ;;
47	*) DEBUG= MALLOC_DEBUG= ;;
48	esac
49
50	dnl canonicalize the host and os so we can do some tricky things before
51	dnl parsing options
52	AC_CANONICAL_HOST
53
54	dnl configure defaults
55	opt_bash_malloc=yes
56	opt_purify=no
57	opt_purecov=no
58	opt_afs=no
59	opt_curses=no
60	opt_with_installed_readline=no
61
62	#htmldir=
63
64	dnl some systems should be configured without the bash malloc by default
65	dnl and some need a special compiler or loader
66	dnl look in the NOTES file for more
67	case "${host_cpu}-${host_os}" in
68	alpha-) opt_bash_malloc=no ;; # alpha running osf/1 or linux
69	[[Cc]]ray-*) opt_bash_malloc=no ;; # Crays
70	-osf1) opt_bash_malloc=no ;; # other osf/1 machines
71	sparc-svr4*) opt_bash_malloc=no ;; # sparc SVR4, SVR4.2
72	sparc-netbsd*) opt_bash_malloc=no ;; # needs 8-byte alignment
73	mips-irix6*) opt_bash_malloc=no ;; # needs 8-byte alignment
74	m68k-sysv) opt_bash_malloc=no ;; # fixes file descriptor leak in closedir
75	sparc-linux*) opt_bash_malloc=no ;; # sparc running linux; requires ELF
76	#-freebsd-gnu) opt_bash_malloc=no ;; # there's some undetermined problem here
77	#-freebsd) opt_bash_malloc=no ;; # they claim it's better; I disagree
78	-openbsd) opt_bash_malloc=no ;; # they claim it needs eight-bit alignment
79	-aix) opt_bash_malloc=no ;; # AIX machines
80	-nextstep) opt_bash_malloc=no ;; # NeXT machines running NeXTstep
81	-macos) opt_bash_malloc=no ;; # Apple MacOS X
82	-rhapsody) opt_bash_malloc=no ;; # Apple Rhapsody (MacOS X)
83	-darwin) opt_bash_malloc=no ;; # Apple Darwin (MacOS X)
84	-dgux) opt_bash_malloc=no ;; # DG/UX machines
85	-qnx) opt_bash_malloc=no ;; # QNX 4.2, QNX 6.x
86	*-machten4) opt_bash_malloc=no ;; # MachTen 4.x
87	-bsdi2.1\|-bsdi3.?) opt_bash_malloc=no ; : ${CC:=shlicc2} ;; # for loadable builtins
88	-beos) opt_bash_malloc=no ;; # they say it's suitable
89	-cygwin) opt_bash_malloc=no ;; # Cygnus's CYGWIN environment
90	-opennt\|-interix) opt_bash_malloc=no ;; # Interix, now owned by Microsoft
91	esac
92
93	# memory scrambling on free()
94	case "${host_os}" in
95	sco3.2v5\|sco3.2v4) opt_memscramble=no ;;
96	*) opt_memscramble=yes ;;
97	esac
98
99	dnl
100	dnl macros for the bash debugger
101	dnl
102	AM_PATH_LISPDIR
103	AC_ARG_VAR(DEBUGGER_START_FILE, [location of bash debugger initialization file])
104
105	dnl arguments to configure
106	dnl packages
107	AC_ARG_WITH(afs, AC_HELP_STRING([--with-afs], [if you are running AFS]), opt_afs=$withval)
108	AC_ARG_WITH(bash-malloc, AC_HELP_STRING([--with-bash-malloc], [use the Bash version of malloc]), opt_bash_malloc=$withval)
109	AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
110	AC_ARG_WITH(gnu-malloc, AC_HELP_STRING([--with-gnu-malloc], [synonym for --with-bash-malloc]), opt_bash_malloc=$withval)
111	AC_ARG_WITH(installed-readline, AC_HELP_STRING([--with-installed-readline], [use a version of the readline library that is already installed]), opt_with_installed_readline=$withval)
112	AC_ARG_WITH(purecov, AC_HELP_STRING([--with-purecov], [configure to postprocess with pure coverage]), opt_purecov=$withval)
113	AC_ARG_WITH(purify, AC_HELP_STRING([--with-purify], [configure to postprocess with purify]), opt_purify=$withval)
114
115	if test "$opt_bash_malloc" = yes; then
116	MALLOC_TARGET=malloc
117	MALLOC_SRC=malloc.c
118
119	MALLOC_LIB='-lmalloc'
120	MALLOC_LIBRARY='$(ALLOC_LIBDIR)/libmalloc.a'
121	MALLOC_LDFLAGS='-L$(ALLOC_LIBDIR)'
122	MALLOC_DEP='$(MALLOC_LIBRARY)'
123
124	AC_DEFINE(USING_BASH_MALLOC)
125	else
126	MALLOC_LIB=
127	MALLOC_LIBRARY=
128	MALLOC_LDFLAGS=
129	MALLOC_DEP=
130	fi
131
132	if test "$opt_purify" = yes; then
133	PURIFY="purify "
134	AC_DEFINE(DISABLE_MALLOC_WRAPPERS)
135	else
136	PURIFY=
137	fi
138
139	if test "$opt_purecov" = yes; then
140	PURIFY="${PURIFY}purecov"
141	fi
142
143	if test "$opt_afs" = yes; then
144	AC_DEFINE(AFS)
145	fi
146
147	if test "$opt_curses" = yes; then
148	prefer_curses=yes
149	fi
150
151	if test -z "${DEBUGGER_START_FILE}"; then
152	DEBUGGER_START_FILE=${ac_default_prefix}/lib/bashdb/bashdb-main.inc
153	fi
154
155	dnl optional shell features in config.h.in
156	opt_minimal_config=no
157
158	opt_job_control=yes
159	opt_alias=yes
160	opt_readline=yes
161	opt_history=yes
162	opt_bang_history=yes
163	opt_dirstack=yes
164	opt_restricted=yes
165	opt_process_subst=yes
166	opt_prompt_decoding=yes
167	opt_select=yes
168	opt_help=yes
169	opt_array_variables=yes
170	opt_dparen_arith=yes
171	opt_extended_glob=yes
172	opt_brace_expansion=yes
173	opt_disabled_builtins=no
174	opt_command_timing=yes
175	opt_xpg_echo=no
176	opt_strict_posix=no
177	opt_cond_command=yes
178	opt_cond_regexp=yes
179	opt_arith_for_command=yes
180	opt_net_redirs=yes
181	opt_progcomp=yes
182	opt_separate_help=no
183	opt_multibyte=yes
184	opt_debugger=yes
185	opt_single_longdoc_strings=yes
186
187	dnl options that affect how bash is compiled and linked
188	opt_static_link=no
189	opt_profiling=no
190
191	dnl argument parsing for optional features
192	AC_ARG_ENABLE(minimal-config, AC_HELP_STRING([--enable-minimal-config], [a minimal sh-like configuration]), opt_minimal_config=$enableval)
193
194	dnl a minimal configuration turns everything off, but features can be
195	dnl added individually
196	if test $opt_minimal_config = yes; then
197	opt_job_control=no opt_alias=no opt_readline=no
198	opt_history=no opt_bang_history=no opt_dirstack=no
199	opt_restricted=no opt_process_subst=no opt_prompt_decoding=no
200	opt_select=no opt_help=no opt_array_variables=no opt_dparen_arith=no
201	opt_brace_expansion=no opt_disabled_builtins=no opt_command_timing=no
202	opt_extended_glob=no opt_cond_command=no opt_arith_for_command=no
203	opt_net_redirs=no opt_progcomp=no opt_separate_help=no
204	opt_multibyte=yes opt_cond_regexp=no
205	fi
206
207	AC_ARG_ENABLE(alias, AC_HELP_STRING([--enable-alias], [enable shell aliases]), opt_alias=$enableval)
208	AC_ARG_ENABLE(arith-for-command, AC_HELP_STRING([--enable-arith-for-command], [enable arithmetic for command]), opt_arith_for_command=$enableval)
209	AC_ARG_ENABLE(array-variables, AC_HELP_STRING([--enable-array-variables], [include shell array variables]), opt_array_variables=$enableval)
210	AC_ARG_ENABLE(bang-history, AC_HELP_STRING([--enable-bang-history], [turn on csh-style history substitution]), opt_bang_history=$enableval)
211	AC_ARG_ENABLE(brace-expansion, AC_HELP_STRING([--enable-brace-expansion], [include brace expansion]), opt_brace_expansion=$enableval)
212	AC_ARG_ENABLE(command-timing, AC_HELP_STRING([--enable-command-timing], [enable the time reserved word and command timing]), opt_command_timing=$enableval)
213	AC_ARG_ENABLE(cond-command, AC_HELP_STRING([--enable-cond-command], [enable the conditional command]), opt_cond_command=$enableval)
214	AC_ARG_ENABLE(cond-regexp, AC_HELP_STRING([--enable-cond-regexp], [enable extgended regular expression matching in conditional commands]), opt_cond_regexp=$enableval)
215	AC_ARG_ENABLE(debugger, AC_HELP_STRING([--enable-debugger], [enable support for bash debugger]), opt_debugger=$enableval)
216	AC_ARG_ENABLE(directory-stack, AC_HELP_STRING([--enable-directory-stack], [enable builtins pushd/popd/dirs]), opt_dirstack=$enableval)
217	AC_ARG_ENABLE(disabled-builtins, AC_HELP_STRING([--enable-disabled-builtins], [allow disabled builtins to still be invoked]), opt_disabled_builtins=$enableval)
218	AC_ARG_ENABLE(dparen-arithmetic, AC_HELP_STRING([--enable-dparen-arithmetic], [include ((...)) command]), opt_dparen_arith=$enableval)
219	AC_ARG_ENABLE(extended-glob, AC_HELP_STRING([--enable-extended-glob], [include ksh-style extended pattern matching]), opt_extended_glob=$enableval)
220	AC_ARG_ENABLE(help-builtin, AC_HELP_STRING([--enable-help-builtin], [include the help builtin]), opt_help=$enableval)
221	AC_ARG_ENABLE(history, AC_HELP_STRING([--enable-history], [turn on command history]), opt_history=$enableval)
222	AC_ARG_ENABLE(job-control, AC_HELP_STRING([--enable-job-control], [enable job control features]), opt_job_control=$enableval)
223	AC_ARG_ENABLE(multibyte, AC_HELP_STRING([--enable-multibyte], [enable multibyte characters if OS supports them]), opt_multibyte=$enableval)
224	AC_ARG_ENABLE(net-redirections, AC_HELP_STRING([--enable-net-redirections], [enable /dev/tcp/host/port redirection]), opt_net_redirs=$enableval)
225	AC_ARG_ENABLE(process-substitution, AC_HELP_STRING([--enable-process-substitution], [enable process substitution]), opt_process_subst=$enableval)
226	AC_ARG_ENABLE(progcomp, AC_HELP_STRING([--enable-progcomp], [enable programmable completion and the complete builtin]), opt_progcomp=$enableval)
227	AC_ARG_ENABLE(prompt-string-decoding, AC_HELP_STRING([--enable-prompt-string-decoding], [turn on escape character decoding in prompts]), opt_prompt_decoding=$enableval)
228	AC_ARG_ENABLE(readline, AC_HELP_STRING([--enable-readline], [turn on command line editing]), opt_readline=$enableval)
229	AC_ARG_ENABLE(restricted, AC_HELP_STRING([--enable-restricted], [enable a restricted shell]), opt_restricted=$enableval)
230	AC_ARG_ENABLE(select, AC_HELP_STRING([--enable-select], [include select command]), opt_select=$enableval)
231	AC_ARG_ENABLE(separate-helpfiles, AC_HELP_STRING([--enable-separate-helpfiles], [use external files for help builtin documentation]), opt_separate_help=$enableval)
232	AC_ARG_ENABLE(single-help-strings, AC_HELP_STRING([--enable-single-help-strings], [store help documentation as a single string to ease translation]), opt_single_longdoc_strings=$enableval)
233	AC_ARG_ENABLE(strict-posix-default, AC_HELP_STRING([--enable-strict-posix-default], [configure bash to be posix-conformant by default]), opt_strict_posix=$enableval)
234	AC_ARG_ENABLE(usg-echo-default, AC_HELP_STRING([--enable-usg-echo-default], [a synonym for --enable-xpg-echo-default]), opt_xpg_echo=$enableval)
235	AC_ARG_ENABLE(xpg-echo-default, AC_HELP_STRING([--enable-xpg-echo-default], [make the echo builtin expand escape sequences by default]), opt_xpg_echo=$enableval)
236
237	dnl options that alter how bash is compiled and linked
238	AC_ARG_ENABLE(mem-scramble, AC_HELP_STRING([--enable-mem-scramble], [scramble memory on calls to malloc and free]), opt_memscramble=$enableval)
239	AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling], [allow profiling with gprof]), opt_profiling=$enableval)
240	AC_ARG_ENABLE(static-link, AC_HELP_STRING([--enable-static-link], [link bash statically, for use as a root shell]), opt_static_link=$enableval)
241
242	dnl opt_job_control is handled later, after BASH_JOB_CONTROL_MISSING runs
243
244	dnl opt_readline and opt_history are handled later, because AC_PROG_CC needs
245	dnl to be run before we can check the version of an already-installed readline
246	dnl library
247
248	if test $opt_alias = yes; then
249	AC_DEFINE(ALIAS)
250	fi
251	if test $opt_dirstack = yes; then
252	AC_DEFINE(PUSHD_AND_POPD)
253	fi
254	if test $opt_restricted = yes; then
255	AC_DEFINE(RESTRICTED_SHELL)
256	fi
257	if test $opt_process_subst = yes; then
258	AC_DEFINE(PROCESS_SUBSTITUTION)
259	fi
260	if test $opt_prompt_decoding = yes; then
261	AC_DEFINE(PROMPT_STRING_DECODE)
262	fi
263	if test $opt_select = yes; then
264	AC_DEFINE(SELECT_COMMAND)
265	fi
266	if test $opt_help = yes; then
267	AC_DEFINE(HELP_BUILTIN)
268	fi
269	if test $opt_array_variables = yes; then
270	AC_DEFINE(ARRAY_VARS)
271	fi
272	if test $opt_dparen_arith = yes; then
273	AC_DEFINE(DPAREN_ARITHMETIC)
274	fi
275	if test $opt_brace_expansion = yes; then
276	AC_DEFINE(BRACE_EXPANSION)
277	fi
278	if test $opt_disabled_builtins = yes; then
279	AC_DEFINE(DISABLED_BUILTINS)
280	fi
281	if test $opt_command_timing = yes; then
282	AC_DEFINE(COMMAND_TIMING)
283	fi
284	if test $opt_xpg_echo = yes ; then
285	AC_DEFINE(DEFAULT_ECHO_TO_XPG)
286	fi
287	if test $opt_strict_posix = yes; then
288	AC_DEFINE(STRICT_POSIX)
289	fi
290	if test $opt_extended_glob = yes ; then
291	AC_DEFINE(EXTENDED_GLOB)
292	fi
293	if test $opt_cond_command = yes ; then
294	AC_DEFINE(COND_COMMAND)
295	fi
296	if test $opt_cond_regexp = yes ; then
297	AC_DEFINE(COND_REGEXP)
298	fi
299	if test $opt_arith_for_command = yes; then
300	AC_DEFINE(ARITH_FOR_COMMAND)
301	fi
302	if test $opt_net_redirs = yes; then
303	AC_DEFINE(NETWORK_REDIRECTIONS)
304	fi
305	if test $opt_progcomp = yes; then
306	AC_DEFINE(PROGRAMMABLE_COMPLETION)
307	fi
308	if test $opt_multibyte = no; then
309	AC_DEFINE(NO_MULTIBYTE_SUPPORT)
310	fi
311	if test $opt_debugger = yes; then
312	AC_DEFINE(DEBUGGER)
313	fi
314
315	if test $opt_memscramble = yes; then
316	AC_DEFINE(MEMSCRAMBLE)
317	fi
318
319	if test "$opt_minimal_config" = yes; then
320	TESTSCRIPT=run-minimal
321	else
322	TESTSCRIPT=run-all
323	fi
324
325	HELPDIR= HELPDIRDEFINE= HELPINSTALL=
326	if test "$opt_separate_help" != no; then
327	if test "$opt_separate_help" = "yes" ; then
328	HELPDIR='${datadir}/bash'
329	else
330	HELPDIR=$opt_separate_help
331	fi
332	HELPDIRDEFINE='-H ${HELPDIR}'
333	HELPINSTALL='install-help'
334	fi
335	HELPSTRINGS=
336	if test "$opt_single_longdoc_strings" != "yes"; then
337	HELPSTRINGS='-S'
338	fi
339
340	dnl now substitute in the values generated by arguments
341	AC_SUBST(TESTSCRIPT)
342	AC_SUBST(PURIFY)
343	AC_SUBST(MALLOC_TARGET)
344	AC_SUBST(MALLOC_SRC)
345
346	AC_SUBST(MALLOC_LIB)
347	AC_SUBST(MALLOC_LIBRARY)
348	AC_SUBST(MALLOC_LDFLAGS)
349	AC_SUBST(MALLOC_DEP)
350
351	AC_SUBST(htmldir)
352
353	AC_SUBST(HELPDIR)
354	AC_SUBST(HELPDIRDEFINE)
355	AC_SUBST(HELPINSTALL)
356	AC_SUBST(HELPSTRINGS)
357
358	echo ""
359	echo "Beginning configuration for bash-$BASHVERS-$RELSTATUS for ${host_cpu}-${host_vendor}-${host_os}"
360	echo ""
361
362	dnl compilation checks
363	dnl AC_PROG_CC sets $cross_compiling to `yes' if cross-compiling for a
364	dnl different environment
365	AC_PROG_CC
366
367	dnl test for Unix variants
368	AC_ISC_POSIX
369	AC_MINIX
370
371	AC_SYS_LARGEFILE
372
373	dnl BEGIN changes for cross-building (currently cygwin, minGW, and
374	dnl (obsolete) BeOS)
375
376	SIGNAMES_H=lsignames.h
377
378	dnl load up the cross-building cache file -- add more cases and cache
379	dnl files as necessary
380
381	dnl Note that host and target machine are the same, and different than the
382	dnl build machine.
383	dnl Set SIGNAMES_H based on whether or not we're cross-compiling.
384
385	if test "x$cross_compiling" = "xyes"; then
386	case "${host}" in
387	-cygwin)
388	cross_cache=${srcdir}/cross-build/cygwin32.cache
389	SIGNAMES_H='$(srcdir)/cross-build/win32sig.h'
390	;;
391	-mingw)
392	cross_cache=${srcdir}/cross-build/cygwin32.cache
393	;;
394	i[[3456]]86--beos)
395	cross_cache=${srcdir}/cross-build/x86-beos.cache
396	SIGNAMES_H='${srcdir}/cross-build/beos-sig.h'
397	;;
398	*) echo "configure: cross-compiling for $host is not supported" >&2
399	;;
400	esac
401	if test -n "${cross_cache}" && test -r "${cross_cache}"; then
402	echo "loading cross-build cache file ${cross_cache}"
403	. ${cross_cache}
404	fi
405	unset cross_cache
406	CROSS_COMPILE='-DCROSS_COMPILING'
407	AC_SUBST(CROSS_COMPILE)
408	fi
409	AC_SUBST(SIGNAMES_H)
410
411	if test -z "$CC_FOR_BUILD"; then
412	if test "x$cross_compiling" = "xno"; then
413	CC_FOR_BUILD='$(CC)'
414	else
415	CC_FOR_BUILD=gcc
416	fi
417	fi
418	AC_SUBST(CC_FOR_BUILD)
419
420	dnl END changes for cross-building
421
422	dnl We want these before the checks, so the checks can modify their values.
423	test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
424
425	dnl If we're using gcc and the user hasn't specified CFLAGS, add -O2 to CFLAGS.
426	test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O2"
427
428	dnl handle options that alter how bash is compiled and linked
429	dnl these must come after the test for cc/gcc
430	if test "$opt_profiling" = "yes"; then
431	PROFILE_FLAGS=-pg
432	case "$host_os" in
433	solaris2*) ;;
434	*) opt_static_link=yes ;;
435	esac
436	DEBUG= MALLOC_DEBUG=
437	fi
438
439	if test "$opt_static_link" = yes; then
440	# if we're using gcc, add `-static' to LDFLAGS, except on Solaris >= 2
441	if test -n "$GCC" \|\| test "$ac_cv_prog_gcc" = "yes"; then
442	STATIC_LD="-static"
443	case "$host_os" in
444	solaris2*) ;;
445	*) LDFLAGS="$LDFLAGS -static" ;; # XXX experimental
446	esac
447	fi
448	fi
449
450	if test "X$cross_compiling" = "Xno"; then
451	CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-"$CPPFLAGS"}
452	LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-'$(LDFLAGS)'}
453	else
454	CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-""}
455	LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-""}
456	fi
457
458	test -z "$CFLAGS_FOR_BUILD" && CFLAGS_FOR_BUILD="-g"
459
460	AC_SUBST(CFLAGS)
461	AC_SUBST(CPPFLAGS)
462	AC_SUBST(LDFLAGS)
463	AC_SUBST(STATIC_LD)
464
465	AC_SUBST(CFLAGS_FOR_BUILD)
466	AC_SUBST(CPPFLAGS_FOR_BUILD)
467	AC_SUBST(LDFLAGS_FOR_BUILD)
468
469	AC_PROG_GCC_TRADITIONAL
470
471	dnl BEGIN READLINE and HISTORY LIBRARY SECTION
472	dnl prepare to allow bash to be linked against an already-installed readline
473
474	dnl first test that the readline version is new enough to link bash against
475	if test "$opt_readline" = yes && test "$opt_with_installed_readline" != "no"
476	then
477	# If the user specified --with-installed-readline=PREFIX and PREFIX
478	# is not `yes', set ac_cv_rl_prefix to PREFIX
479	test $opt_with_installed_readline != "yes" && ac_cv_rl_prefix=$opt_with_installed_readline
480
481	RL_LIB_READLINE_VERSION
482
483	case "$ac_cv_rl_version" in
484	5\|6\|7\|8\|9*) ;;
485	*) opt_with_installed_readline=no
486	AC_MSG_WARN(installed readline library is too old to be linked with bash)
487	AC_MSG_WARN(using private bash version)
488	;;
489	esac
490	fi
491
492	TILDE_LIB=-ltilde
493	if test $opt_readline = yes; then
494	AC_DEFINE(READLINE)
495	if test "$opt_with_installed_readline" != "no" ; then
496	case "$opt_with_installed_readline" in
497	yes) RL_INCLUDE= ;;
498	*) case "$RL_INCLUDEDIR" in
499	/usr/include) ;;
500	*) RL_INCLUDE='-I${RL_INCLUDEDIR}' ;;
501	esac
502	;;
503	esac
504	READLINE_DEP=
505	READLINE_LIB=-lreadline
506	# section for OS versions that don't allow unresolved symbols
507	# to be compiled into dynamic libraries.
508	case "$host_os" in
509	cygwin*) TILDE_LIB= ;;
510	esac
511	else
512	RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
513	READLINE_DEP='$(READLINE_LIBRARY)'
514	# section for OS versions that ship an older/broken version of
515	# readline as a standard dynamic library and don't allow a
516	# static version specified as -llibname to override the
517	# dynamic version
518	case "${host_os}" in
519	darwin8*) READLINE_LIB='${READLINE_LIBRARY}' ;;
520	*) READLINE_LIB=-lreadline ;;
521	esac
522	fi
523	else
524	RL_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
525	READLINE_LIB= READLINE_DEP=
526	fi
527	if test $opt_history = yes \|\| test $opt_bang_history = yes; then
528	if test $opt_history = yes; then
529	AC_DEFINE(HISTORY)
530	fi
531	if test $opt_bang_history = yes; then
532	AC_DEFINE(BANG_HISTORY)
533	fi
534	if test "$opt_with_installed_readline" != "no"; then
535	HIST_LIBDIR=$RL_LIBDIR
536	HISTORY_DEP=
537	HISTORY_LIB=-lhistory
538	case "$opt_with_installed_readline" in
539	yes) RL_INCLUDE= ;;
540	*) case "$RL_INCLUDEDIR" in
541	/usr/include) ;;
542	*) RL_INCLUDE='-I${RL_INCLUDEDIR}' ;;
543	esac
544	;;
545	esac
546	else
547	HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
548	HISTORY_DEP='$(HISTORY_LIBRARY)'
549	# section for OS versions that ship an older version of
550	# readline as a standard dynamic library and don't allow a
551	# static version specified as -llibname to override the
552	# dynamic version
553	case "${host_os}" in
554	darwin8*) HISTORY_LIB='${HISTORY_LIBRARY}' ;;
555	*) HISTORY_LIB=-lhistory ;;
556	esac
557	fi
558	else
559	HIST_LIBDIR='$(dot)/$(LIBSUBDIR)/readline'
560	HISTORY_LIB= HISTORY_DEP=
561	fi
562	AC_SUBST(READLINE_LIB)
563	AC_SUBST(READLINE_DEP)
564	AC_SUBST(RL_LIBDIR)
565	AC_SUBST(RL_INCLUDEDIR)
566	AC_SUBST(RL_INCLUDE)
567	AC_SUBST(HISTORY_LIB)
568	AC_SUBST(HISTORY_DEP)
569	AC_SUBST(HIST_LIBDIR)
570	AC_SUBST(TILDE_LIB)
571
572	dnl END READLINE and HISTORY LIBRARY SECTION
573
574	dnl programs needed by the build and install process
575	AC_PROG_INSTALL
576	AC_CHECK_PROG(AR, ar, , ar)
577	dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
578	dnl This allows people to set it when running configure or make
579	test -n "$ARFLAGS" \|\| ARFLAGS="cr"
580	AC_PROG_RANLIB
581	AC_PROG_YACC
582	AC_PROG_MAKE_SET
583
584	case "$host_os" in
585	opennt\|interix) MAKE_SHELL="$INTERIX_ROOT/bin/sh" ;;
586	*) MAKE_SHELL=/bin/sh ;;
587	esac
588	AC_SUBST(MAKE_SHELL)
589
590	dnl this is similar to the expanded AC_PROG_RANLIB
591	if test x$SIZE = x; then
592	if test x$ac_tool_prefix = x; then
593	SIZE=size
594	else
595	SIZE=${ac_tool_prefix}size
596	save_IFS=$IFS ; IFS=:
597	size_found=0
598	for dir in $PATH; do
599	if test -x $dir/$SIZE ; then
600	size_found=1
601	break
602	fi
603	done
604	if test $size_found -eq 0; then
605	SIZE=:
606	fi
607	IFS=$save_IFS
608	fi
609	fi
610	AC_SUBST(SIZE)
611
612	dnl Turn on any extensions available in the GNU C library.
613	AC_DEFINE(_GNU_SOURCE, 1)
614
615	dnl C compiler characteristics
616	AC_C_CONST
617	AC_C_INLINE
618	AC_C_BIGENDIAN
619	AC_C_STRINGIZE
620	AC_C_LONG_DOUBLE
621	AC_C_PROTOTYPES
622	AC_C_CHAR_UNSIGNED
623
624	dnl initialize GNU gettext
625	AM_GNU_GETTEXT([no-libtool], [need-ngettext], [lib/intl])
626
627	dnl header files
628	AC_HEADER_DIRENT
629	AC_HEADER_TIME
630
631	BASH_HEADER_INTTYPES
632
633	AC_CHECK_HEADERS(unistd.h stdlib.h stdarg.h varargs.h limits.h string.h \
634	memory.h locale.h termcap.h termio.h termios.h dlfcn.h \
635	stddef.h stdint.h netdb.h pwd.h grp.h strings.h regex.h)
636	AC_CHECK_HEADERS(sys/pte.h sys/stream.h sys/select.h sys/file.h \
637	sys/resource.h sys/param.h sys/socket.h sys/stat.h \
638	sys/time.h sys/times.h sys/types.h sys/wait.h)
639	AC_CHECK_HEADERS(netinet/in.h arpa/inet.h)
640
641	dnl sys/ptem.h requires definitions from sys/stream.h on systems where it
642	dnl exists
643	AC_CHECK_HEADER(sys/ptem.h, , ,[[
644	#if HAVE_SYS_STREAM_H
645	# include <sys/stream.h>
646	#endif
647	]])
648
649	dnl special checks for libc functions
650	AC_FUNC_ALLOCA
651	AC_FUNC_GETPGRP
652	AC_FUNC_SETVBUF_REVERSED
653	AC_FUNC_VPRINTF
654	AC_FUNC_STRCOLL
655
656	dnl if we're not using the bash malloc but require the C alloca, set things
657	dnl up to build a libmalloc.a containing only alloca.o
658
659	if test "$ac_cv_func_alloca_works" = "no" && test "$opt_bash_malloc" = "no"; then
660	MALLOC_TARGET=alloca
661	MALLOC_SRC=alloca.c
662
663	MALLOC_LIB='-lmalloc'
664	MALLOC_LIBRARY='$(ALLOC_LIBDIR)/libmalloc.a'
665	MALLOC_LDFLAGS='-L$(ALLOC_LIBDIR)'
666	MALLOC_DEP='$(MALLOC_LIBRARY)'
667	fi
668
669	dnl if vprintf is not in libc, see if it's defined in stdio.h
670	if test "$ac_cv_func_vprintf" = no; then
671	AC_MSG_CHECKING(for declaration of vprintf in stdio.h)
672	AC_EGREP_HEADER([[int[ ]*vprintf[^a-zA-Z0-9]]],stdio.h,ac_cv_func_vprintf=yes)
673	AC_MSG_RESULT($ac_cv_func_vprintf)
674	if test $ac_cv_func_vprintf = yes; then
675	AC_DEFINE(HAVE_VPRINTF)
676	fi
677	fi
678
679	if test "$ac_cv_func_vprintf" = no && test "$ac_cv_func__doprnt" = "yes"; then
680	AC_LIBOBJ(vprint)
681	fi
682
683	dnl signal stuff
684	AC_TYPE_SIGNAL
685
686	dnl checks for certain version-specific system calls and libc functions
687	AC_CHECK_FUNC(__setostype, AC_DEFINE(HAVE_SETOSTYPE))
688	AC_CHECK_FUNC(wait3, AC_DEFINE(HAVE_WAIT3))
689	AC_CHECK_FUNC(isinf, AC_DEFINE(HAVE_ISINF_IN_LIBC))
690
691	dnl checks for missing libc functions
692	AC_CHECK_FUNC(mkfifo,AC_DEFINE(HAVE_MKFIFO),AC_DEFINE(MKFIFO_MISSING))
693
694	dnl checks for system calls
695	AC_CHECK_FUNCS(dup2 fcntl getdtablesize getgroups gethostname getpagesize \
696	getpeername getrlimit getrusage gettimeofday kill killpg \
697	lstat readlink sbrk select setdtablesize tcgetpgrp uname \
698	ulimit waitpid)